Radial tire has 6-ply rating and 1,820-lb max load at 50 psi. 15" x 5" Aluminum wheel has 5 on 4-1/2 bolt pattern. 1-Year No Excuses Guarantee on tire. Complimentary roadside assistance included.
Features:
Specs:
This tire-and-wheel assembly comes with complimentary roadside assistance for 2 years. If your RV or trailer has a flat tire, call the help line and a technician will come change the flat for you. You can call 24 hours a day, 7 days a week, and 365 days a year from anywhere in the United States, Canada, or Puerto Rico.
This tire has a 1-year No Excuses Guarantee. If within the first 12 months the tire is damaged in any way that's not covered by warranty, it will be replaced at no charge. You will also be compensated a flat labor rate for the cost of mounting the replacement tire.
This radial ply tire from Castle Rock is constructed with double steel belts and double polyester cords for increased durability. A protective layer of nylon is wrapped around the steel belts to help prevent tread separation.
The standard tread on this tire has solid, continuous ribs, and there are very few sipes (or thin grooves) cut into the rubber. This tire is designed for use on trailers, so it doesn't require the level of traction that would be needed on a vehicle that is braking or steering.
Radial ply tires are designed for trailers that are towed on the highway. The cords on a radial tire are positioned at a 90-degree angle to the direction of travel so that they lay across the width of the tire from wheel lip to wheel lip. This construction prevents the cords from rubbing against one another when the tire flexes, unlike the cords on a bias ply tire. As a result, radial tires have less rolling resistance and heat buildup, which leads to a longer tread life and improved steering at higher speeds.
Determining the Bolt Pattern
The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.
To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: "5 on 4-1/2" means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)
On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: "8 on 6-1/2" means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)
Measuring the distance from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everybody. Andy here with etrailer.com. Let's take a look at this Castle Rock ST20575 R15 load range C radial trailer tire with this 15 inch black Margay aluminum wheel with a 5 on 4-1/2 inch bolt pattern. Now, this tire and wheel assembly is going to be great for your RVs, campers, and trailers. The special trailer tire or ST tire has sturdy sidewalls so it can handle heavy loads. And this is created specifically for trailers and it's not intended for use on other vehicles.
Now, this radial tire is constructed with double steel belts and double nylon plies for increased durability. Radial ply tires, as you probably know, are designed for trailers that are towed on the highway. The nylon tread firming belt overlays are gonna help prevent tread separation. And the treadwear indicator makes it easy to see tread depth. Now, the tire size, as I mentioned at the beginning of our time together and as we have stamped here on our tire, is an ST20575 R15, and the section width is eight inches.
And the outer diameter, when this is fully inflated, is 27.12 inches. This is a load range C tire, meaning it has a six ply rating. The maximum load is 1,820 pounds at 50 PSI. And this tire has a speed rating of L, indicating a maximum speed of 75 miles per hour. This sturdy aluminum Margay series five spoke design in black is very attractive.
It's very eye catching, but it's also gonna be very durable and very sturdy for you. The automotive grade clear coat finish on the front protects the wheel from scuffs and scratches. The dimensions of this wheel or of this rim, measuring the diameter from bead seat to bead seat is 15 inches, and the width of this rim is five inches. And this does have a bolt pattern of 5 on 4-1/2 inches. And in case you don't know the first number in the bolt pattern is the number of bolt holes and the second number is the diameter in inches of the circle on which the bolt holes sit.
So to determine the bolt circle diameter on wheels with an odd number of bolt holes as we have here, you're simply gonna measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. Now, the wheel capacity is 2,150 pounds. The wheel stud size is 1/2 inch by 20, the center cap is sold separately, but if you pick one up, you just wanna make sure that it fits the pilot diameter of 3.19 inches. This tire and wheel assembly does meet the Department of Transportation specifications and the tire itself meets the Federal Motor Vehicle Safety Standards specifications and the wheel meets the SAE J1204 standards. One final note, this tire and wheel assembly comes with complementary roadside assistance for two years. So if your RV or trailer has a flat tire, simply call the helpline and a technician will come and change the flat for you. And you can call that number 24 hours a day, seven days a week, 365 days a year from anywhere here in the United States, Canada, or Puerto Rico. Well, that's gonna wrap up our look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.
Average Customer Rating: 4.3 out of 5 stars (4 Customer Reviews)
Radial tire has 6-ply rating and 1,820-lb max load at 50 psi. 15" x 5" Aluminum wheel has 5 on 4-1/2 bolt pattern. 1-Year No Excuses Guarantee on tire. Complimentary roadside assistance included.Fast shipping !!!
Very satisfied, great product. Fast shi pping
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